Oval|Lab Grown|IGI

3.12ct D VVS1 Oval Lab Grown Diamond

ID • D/VVS1 • IGI LG841688087

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG841688087

Diamond specifications and retailer prices

From £658 GBP
$876 USD
As of October 26, 2026
Save £2,205 GBP (77%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,483 GBP at Helzberg Diamonds · As of October 13, 2026
View at Helzberg Diamonds

About this 3.12ct lab-grown oval diamond

This 3.12ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG841688087 or 841688087. Listed at 20 retailers as of October 26, 2026, with a 335% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.12
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841688087
Dimensions11.57 × 8.16 × 5.11 mm
L/W Ratio1.42
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.57 mm8.16 mm3.12 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841688087
Side View
Table 63.0%Crown 37.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £3,483 GBP|Low: £658 GBP|High: £3,562 GBP|Avg: £1,891 GBP|-2.2%
Helzberg Diamonds
Retailer 2
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Retailer 21
October 29, 2026
Retailer 21£658 GBP
Retailer 11£719 GBP
Retailer 6£737 GBP
Retailer 9£767 GBP
Retailer 14£775 GBP
Retailer 19£894 GBP
Retailer 13£976 GBP
Retailer 5£1,028 GBP
Retailer 3£1,093 GBP
Retailer 17£1,166 GBP
Retailer 12£1,173 GBP
Retailer 4£1,611 GBP
Retailer 8£1,697 GBP
Retailer 2£1,762 GBP
Retailer 10£2,156 GBP
Retailer 16£2,261 GBP
Retailer 15£2,546 GBP
Retailer 7£2,647 GBP
Retailer 18£2,741 GBP
Retailer 20£2,863 GBP
Helzberg Diamonds£3,483 GBP

22 data points across 21 retailers

20 retailers£658 GBP to £2,863 GBP

A
Cheapest Retailer
-
£658 GBP
$876 USD
A
Retailer 2
-
£719 GBP
$958 USD
View
A
Retailer 3
-
£737 GBP
$981 USD
View
Final sale: no returns
A
Retailer 4
-
£767 GBP
$1,021 USD
View
Retailer 5
-
£775 GBP
$1,032 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£894 GBP
$1,190 USD
View
A
Retailer 7
-
£976 GBP
View
A
Retailer 8
-
£1,028 GBP
$1,369 USD
View
A
Retailer 9
-
£1,093 GBP
$1,455 USD
View
A
Retailer 10
-
£1,166 GBP
View
B+
Retailer 11
-
£1,611 GBP
$2,145 USD
View
B+
Retailer 12
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£1,697 GBP
$2,260 USD
View
B+
Retailer 13
-
£1,762 GBP
ZAR 37,897 ZAR
View
B+
Retailer 14
-
£2,156 GBP
$2,871 USD
View
B+
Retailer 15
-
£2,261 GBP
$3,011 USD
View
B+
Retailer 16
-
£2,546 GBP
SGD 4,582 SGD
View
B+
Retailer 17
-
£2,647 GBP
$3,525 USD
View
B+
Retailer 18
-
£2,741 GBP
$3,650 USD
View
B
Retailer 19
-
£2,863 GBP
View
Most Expensive
Helzberg Diamonds
ZXZOKHMOOGON · Oct 13
£3,483 GBP
$4,638 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from £658 GBPSave up to £2,205 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
3.12ct Oval
£658 GBP